.foot{width:100%;margin-top:10vh;margin-bottom:3vh;color:rgba(0,0,0,.45);font-size:14px}.foot .help{margin:0 auto;margin-bottom:1vh;width:60%}.foot .help .item{color:rgba(0,0,0,.45)}.foot .help :hover{color:rgba(0,0,0,.65)}